Security readout for executives and security teams
This flaw affects Siemens Desigo PX Web modules used with building automation controllers. Their HTTPS certificates may be generated with too little randomness, which could let a remote attacker reconstruct the private key. That can undermine trust in the management interface and expose encrypted traffic or impersonation risk. Exposure is most likely in facilities running Siemens Desigo PX Web modules PXA40-W0/W1/W2 or PXA30-W0/W1/W2 on firmware below V6.00.046, especially where the web interface is reachable from corporate, vendor, remote-access, or internet-adjacent networks. Prioritize remediation for exposed building automation management interfaces. The issue can weaken HTTPS trust for operational technology systems, but the provided sources do not show active exploitation. Mitigation focus: Upgrade affected Desigo PX Web modules to firmware V6.00.046 or later where applicable.; Review Siemens advisory SSA-856492 before making operational changes.; Restrict web management access to trusted management networks only..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupCVE-2016-9154 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://ics-cert.us-cert.gov/advisories/ICSA-16-355-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
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Insufficient Entropy in PRNG
Insufficient Entropy in PRNG represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.